Bump haskell-actions/setup from 2.7.7 to 2.7.9

Bumps [haskell-actions/setup](https://github.com/haskell-actions/setup) from 2.7.7 to 2.7.9.
- [Release notes](https://github.com/haskell-actions/setup/releases)
- [Commits](haskell-actions/setup@e447c4c...bbd90a2)

---
updated-dependencies:
- dependency-name: haskell-actions/setup
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/test.yml

@@ -57,7 +57,7 @@ jobs:
       with:
         bundler-cache: true
     - name: Setup Haskell
-      uses: haskell-actions/setup@e447c4c045e7744463435b4b731e125861006ebb
+      uses: haskell-actions/setup@bbd90a29996ac33b1c644a42206e312fc0379748
       with:
         ghc-version: ${{ matrix.ghc }}
         cabal-version: ${{ matrix.cabal }}